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A Study to Understand the Treatment Patterns and Patients and Their Clinical Outcomes Who Are Taking Palbociclib in a Real Life Setting in Israel.

DEMOGRAPHICS, PATIENT CHARACTERISTICS, TREATMENT PATTERNS AND CLINICAL OUTCOMES OF PATIENTS TREATED WITH PALBOCICLIB IN A REAL LIFE SETTING IN ISRAEL

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04671615
Enrollment
559
Registered
2020-12-17
Start date
2020-12-06
Completion date
2022-11-30
Last updated
2025-12-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Metastatic Breast Cancer

Keywords

hormone receptor, positive/human epidermal growth factor 2 - negative (HR+/HER2-)

Brief summary

The purpose of this study is to understand the treatment patterns, patients and their clinical outcomes in a real life setting in Israel. This study was done in adult breast cancer patients who have started palbociclib combination treatment as per the national basket of health services in January 2018 until August 2020 for all lines of therapy. This study had included adult patients who were prescribed with palbociclib for their breast cancer which had spread to other parts of the body. Patients are followed for around 3.5 years.

Interventions

DRUGpalbociclib

As provided in real world practice

Sponsors

Pfizer
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
RETROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to 99 Years
Healthy volunteers
No

Inclusion criteria

* A diagnosis of metastatic breast cancer, based on the National/MHS cancer registry. * Newly diagnosed metastatic breast cancer patients and newly treated with palbociclib within 6 months of diagnosis, in any line of treatment in the metastatic setting. * Available data on palbociclib treatment for at least 6 months. * Continuous healthcare plan enrolment in MHS for at least one year before index date.

Exclusion criteria

* Patients that initiated HER2 inhibitors.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants Categorized According to Type of Index Combination Treatment RegimenDay 1 of index treatment (any day from 01 January 2018 to 30 June 2020 [index period]), data observed and evaluated during 18 months of this retrospective studyNumber of participants were classified on the basis of type of combination treatment along with palbociclib as first line therapy. Index treatment was palbociclib combination treatment. Index period was defined as duration in which participant initiated palbociclib combination treatment.
Duration of Index Treatment Per Type of Combination TreatmentDay 1 of index treatment till discontinuation of index treatment (during 01 January 2018 to 30 June 2022 [approximately 54 months]); data observed and evaluated during 18 months of this retrospective studyDuration in months between the start and stop of therapy was reported. Index treatment was palbociclib combination treatment. Kaplan-Meier method was used for the assessment of this outcome measure.
Number of Participants Categorized According to Number of Cycles of Index Treatment Per Type of Combination TreatmentDay 1 of index treatment till discontinuation of index treatment (during 01 January 2018 to 30 June 2022 [approximately 54 months]); data observed and evaluated during 18 months of this retrospective studyNumber of participants categorized according to number of cycles of treatment including less than or equal to (\<=) 6, greater than (\>) 6 to 11, \>11 to 20 and \>20 cycles were reported. Index treatment was palbociclib combination treatment.
Number of Participants Categorized According to Initial Palbociclib Dose Per Type of Combination TreatmentDay 1 of index treatment (any day from 01 January 2018 to 30 June 2020 [index period]), data observed and evaluated during 18 months of this retrospective studyNumber of participants were categorized according to initial palbociclib dose. Index treatment was palbociclib combination treatment. Index period was defined as duration in which participant initiated palbociclib combination treatment.
Number of Participants With Modification (Reduction) in Initial Palbociclib Dose Per Type of Combination TreatmentDay 1 of index treatment till discontinuation of index treatment (during 01 January 2018 to 30 June 2022 [approximately 54 months]); data observed and evaluated during 18 months of this retrospective studyNumber of participants who had a reduction in initial palbociclib dose were reported. Index treatment was palbociclib combination treatment.
Time on Treatment for Subsequent Treatment After Palbociclib Therapy Per Type of Combination TreatmentDay 1 of subsequent treatment till last dose of subsequent treatment (during 01 January 2018 to 30 June 2022 [approximately 54 months]); data observed and evaluated during 18 months of this retrospective studySubsequent treatment after palbociclib therapy was the regimen received by participants following discontinuation from the palbociclib treatment and included chemotherapy, everolimus, fulvestrant and other. The duration between the start and stop of the post-palbociclib treatment was reported in this outcome measure. Index treatment was palbociclib combination treatment. Kaplan-Meier method was used for the assessment of this outcome measure.
Percentage of Participants With Ongoing Index Treatment at Month 6 Per Type of Combination TreatmentDay 1 of index treatment up to Month 6 of index treatment (during 01 January 2018 to 30 June 2022 [approximately 54 months]); data observed and evaluated during 18 months of this retrospective studyPercentage of participants with ongoing index treatment at Month 6 were reported. Index treatment was palbociclib combination treatment.
Percentage of Participants With Ongoing Index Treatment at Month 12 Per Type of Combination TreatmentDay 1 of index treatment up to Month 12 of index treatment (during 01 January 2018 to 30 June 2022 [approximately 54 months]); data observed and evaluated during 18 months of this retrospective studyPercentage of participants with ongoing index treatment at Month 12 were reported. Index treatment was palbociclib combination treatment.
Percentage of Participants With Ongoing Index Treatment at Month 24 Per Type of Combination TreatmentDay 1 of index treatment up to Month 24 of index treatment (during 01 January 2018 to 30 June 2022 [approximately 54 months]); data observed and evaluated during 18 months of this retrospective studyPercentage of participants with ongoing index treatment at Month 24 were reported. Index treatment was palbociclib combination treatment.
Number of Participants Who Died Following Initiation of Index Treatment up to Month 6 Per Type of Combination TreatmentDay 1 of index treatment up to Month 6 of index treatment (during 01 January 2018 to 30 June 2022 [approximately 54 months]); data observed and evaluated during 18 months of this retrospective studyNumber of participants who died following index treatment up to Month 6 were reported. Index treatment was palbociclib combination treatment.
Number of Participants Who Died Following Initiation of Index Treatment up to Month 12 Per Type of Combination TreatmentDay 1 of index treatment up to Month 12 of index treatment (during 01 January 2018 to 30 June 2022 [approximately 54 months]); data observed and evaluated during 18 months of this retrospective studyNumber of participants who died following index treatment up to Month 12 were reported. Index treatment was palbociclib combination treatment.
Number of Participants Who Died Following Initiation of Index Treatment up to Month 24 Per Type of Combination TreatmentDay 1 of index treatment up to Month 24 of index treatment (during 01 January 2018 to 30 June 2022 [approximately 54 months]); data observed and evaluated during 18 months of this retrospective studyNumber of participants who died following index treatment up to Month 24 were reported. Index treatment is palbociclib combination treatment.
Number of Participants Who Advanced and Did Not Advance to a Subsequent Treatment up to Month 6 Per Type of Combination TreatmentDay 1 of index treatment up to Month 6 of index treatment (during 01 January 2018 to 30 June 2022 [approximately 54 months]); data observed and evaluated during 18 months of this retrospective studySubsequent treatment after palbociclib therapy was the regimen received by participants following discontinuation from the palbociclib treatment. Number of participants who advanced and did not advance to a subsequent treatment up to Month 6 were reported. Index treatment is palbociclib combination treatment.
Number of Participants Who Advanced and Did Not Advance to a Subsequent Treatment up to Month 12 Per Type of Combination TreatmentDay 1 of index treatment up to Month 12 of index treatment (during 01 January 2018 to 30 June 2022 [approximately 54 months]); data observed and evaluated during 18 months of this retrospective studySubsequent treatment after palbociclib therapy was the regimen received by participants following discontinuation from the palbociclib treatment. Number of participants who advanced and did not advance to a subsequent treatment up to Month 12 were reported. Index treatment is palbociclib combination treatment.
Number of Participants Who Advanced and Did Not Advance to a Subsequent Treatment up to Month 24 Per Type of Combination TreatmentDay 1 of index treatment up to Month 24 of index treatment (during 01 January 2018 to 30 June 2022 [approximately 54 months]); data observed and evaluated during 18 months of this retrospective studySubsequent treatment after palbociclib therapy was the regimen received by participants following discontinuation from the palbociclib treatment. Number of participants who advanced and did not advance to a subsequent treatment up to Month 24 were reported. Index treatment is palbociclib combination treatment.
Time to Initiation of Chemotherapy After Cessation of Initial Palbociclib Therapy Per Type of Combination TreatmentFrom cessation of index treatment up to initiation of chemotherapy (during 01 January 2018 to 31 December 2020 [approximately 36 months]); data observed and evaluated during 18 months of this retrospective studyTime to initiation of chemotherapy was the duration from end of index treatment up to start of chemotherapy. Index treatment is palbociclib combination treatment.
Time to Initiation of Next Treatment (TTNT) From Initiation of Palbociclib Treatment Per Type of Combination TreatmentDay 1 of index treatment up to initiation of next treatment (during 01 January 2018 to 30 June 2022 [approximately 54 months]); data observed and evaluated during 18 months of this retrospective studyTTNT was defined as the interval between the start of the index treatment date and the date of the next-line treatment. Participants who did not advance to the next treatment were censored on the study end date or death, whichever occurred first. Index treatment is palbociclib combination treatment. Kaplan-Meier method was used for the assessment of this outcome measure.

Countries

Israel

Participant flow

Recruitment details

Retrospective data from Israel participants with hormone receptor positive (HR+)/ human epidermal growth factor receptor 2 negative (HER2-) metastatic breast cancer and who initiated first or subsequent lines of palbociclib along with combination treatment (aromatase inhibitor \[AI\] or fulvestrant) and had at least 24 months of follow up post treatment initiation were planned to be observed.

Pre-assignment details

Data were identified and retrieved from Maccabi healthcare services (MHS) database for eligible participants who initiated palbociclib combination treatment from 01 January 2018 to 30 June 2020. The observation period was extended up to 30 June 2022 to include the follow up duration of minimum of 24 months post treatment initiation. Data was observed and evaluated during 18 months of this retrospective study (06 December 2020 to 30 June 2022) of this study.

Participants by arm

ArmCount
Palbociclib
Participants with HR+/HER2- metastatic breast cancer, who had initiated palbociclib combination treatment in real world clinical practice as per the national basket of health services, were observed during this population based retrospective database study.
559
Total559

Baseline characteristics

CharacteristicPalbociclib
Age, Continuous65.00 Years
Age, Customized
<=65 Years
278 Participants
Age, Customized
>65 Years
281 Participants
Body Mass Index (BMI)27.85 Kilogram per meter square
Number of Participants According to Deyo-Charlson Comorbidity Index Categories
0
241 Participants
Number of Participants According to Deyo-Charlson Comorbidity Index Categories
1-2
205 Participants
Number of Participants According to Deyo-Charlson Comorbidity Index Categories
>=3
113 Participants
Number of Participants According to Histology of Breast Cancer
Invasive ductal
434 Participants
Number of Participants According to Histology of Breast Cancer
Invasive lobular
67 Participants
Number of Participants According to Histology of Breast Cancer
Lobular and ductal
19 Participants
Number of Participants According to Histology of Breast Cancer
Other/missing/unknown
39 Participants
Number of Participants According to Location of Metastases
Bone
394 Participants
Number of Participants According to Location of Metastases
Brain
15 Participants
Number of Participants According to Location of Metastases
Lymph
251 Participants
Number of Participants According to Location of Metastases
Visceral
261 Participants
Number of Participants According to Region of Residence
Central
379 Participants
Number of Participants According to Region of Residence
North
99 Participants
Number of Participants According to Region of Residence
South
81 Participants
Number of Participants According to Smoking History
Current or former
210 Participants
Number of Participants According to Smoking History
Never
349 Participants
Number of Participants According to Socioeconomic Status
High
239 Participants
Number of Participants According to Socioeconomic Status
Low
212 Participants
Number of Participants According to Socioeconomic Status
Medium
108 Participants
Number of Participants Categorized According to BMI
Missing
36 Participants
Number of Participants Categorized According to BMI
Normal
138 Participants
Number of Participants Categorized According to BMI
Obese
186 Participants
Number of Participants Categorized According to BMI
Overweight
190 Participants
Number of Participants Categorized According to BMI
Underweight
9 Participants
Number of Participants Categorized According to Hormone Receptor Sensitivity
ER+
139 Participants
Number of Participants Categorized According to Hormone Receptor Sensitivity
ER+/PR+
405 Participants
Number of Participants Categorized According to Hormone Receptor Sensitivity
Missing
11 Participants
Number of Participants Categorized According to Hormone Receptor Sensitivity
PR+
4 Participants
Number of Participants who Used Other Medications Prior to Palbociclib Initiation0 Participants
Number of Participants who Visited Community/Hospital for Genetic Counselling170 Participants
Number of Participants With Chronic Disease - Depression174 Participants
Number of Participants With Co-morbidities Diagnosed in one Year Prior to Palbociclib Initiation
Cardiovascular disease
76 Participants
Number of Participants With Co-morbidities Diagnosed in one Year Prior to Palbociclib Initiation
Chronic obstructive pulmonary disease (COPD)
33 Participants
Number of Participants With Co-morbidities Diagnosed in one Year Prior to Palbociclib Initiation
Diabetes mellitus
133 Participants
Number of Participants With Co-morbidities Diagnosed in one Year Prior to Palbociclib Initiation
Hypertension
279 Participants
Number of Participants With Co-morbidities Diagnosed in one Year Prior to Palbociclib Initiation
Ischemic heart disease
27 Participants
Number of Participants With Co-morbidities Diagnosed in one Year Prior to Palbociclib Initiation
Menopause
439 Participants
Number of Participants With Co-morbidities Diagnosed in one Year Prior to Palbociclib Initiation
Osteoporosis
165 Participants
Number of Participants With Eastern Cooperative Oncology Group (ECOG) Performance Status
ECOG: 0-1
311 Participants
Number of Participants With Eastern Cooperative Oncology Group (ECOG) Performance Status
ECOG: 2-4
70 Participants
Number of Participants With Eastern Cooperative Oncology Group (ECOG) Performance Status
ECOG: Missing
178 Participants
Number of Participants With Germline Breast Cancer Gene Mutation (gBRCAm) Test Performed164 Participants
Race and Ethnicity Not Collected— Participants
Sex: Female, Male
Female
554 Participants
Sex: Female, Male
Male
5 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
269 / 559
other
Total, other adverse events
0 / 0
serious
Total, serious adverse events
0 / 0

Outcome results

Primary

Duration of Index Treatment Per Type of Combination Treatment

Duration in months between the start and stop of therapy was reported. Index treatment was palbociclib combination treatment. Kaplan-Meier method was used for the assessment of this outcome measure.

Time frame: Day 1 of index treatment till discontinuation of index treatment (during 01 January 2018 to 30 June 2022 [approximately 54 months]); data observed and evaluated during 18 months of this retrospective study

Population: Analysis population included all participants whose data were included and observed in the study. Here Number Analyzed refers to the number of participants evaluable for the specified rows.

ArmMeasureGroupValue (MEDIAN)
PalbociclibDuration of Index Treatment Per Type of Combination TreatmentPalbociclib + AI30.5 Months
PalbociclibDuration of Index Treatment Per Type of Combination TreatmentPalbociclib + Fulvestrant12.6 Months
Primary

Number of Participants Categorized According to Initial Palbociclib Dose Per Type of Combination Treatment

Number of participants were categorized according to initial palbociclib dose. Index treatment was palbociclib combination treatment. Index period was defined as duration in which participant initiated palbociclib combination treatment.

Time frame: Day 1 of index treatment (any day from 01 January 2018 to 30 June 2020 [index period]), data observed and evaluated during 18 months of this retrospective study

Population: Analysis population included all participants whose data were included and observed in the study. Here Number Analyzed refers to the number of participants evaluable for the specified rows.

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
PalbociclibNumber of Participants Categorized According to Initial Palbociclib Dose Per Type of Combination TreatmentPalbociclib + AI75 milligrams (mg)8 Participants
PalbociclibNumber of Participants Categorized According to Initial Palbociclib Dose Per Type of Combination TreatmentPalbociclib + AI100 mg23 Participants
PalbociclibNumber of Participants Categorized According to Initial Palbociclib Dose Per Type of Combination TreatmentPalbociclib + AI125 mg262 Participants
PalbociclibNumber of Participants Categorized According to Initial Palbociclib Dose Per Type of Combination TreatmentPalbociclib + Fulvestrant75 milligrams (mg)12 Participants
PalbociclibNumber of Participants Categorized According to Initial Palbociclib Dose Per Type of Combination TreatmentPalbociclib + Fulvestrant100 mg26 Participants
PalbociclibNumber of Participants Categorized According to Initial Palbociclib Dose Per Type of Combination TreatmentPalbociclib + Fulvestrant125 mg228 Participants
Primary

Number of Participants Categorized According to Number of Cycles of Index Treatment Per Type of Combination Treatment

Number of participants categorized according to number of cycles of treatment including less than or equal to (\<=) 6, greater than (\>) 6 to 11, \>11 to 20 and \>20 cycles were reported. Index treatment was palbociclib combination treatment.

Time frame: Day 1 of index treatment till discontinuation of index treatment (during 01 January 2018 to 30 June 2022 [approximately 54 months]); data observed and evaluated during 18 months of this retrospective study

Population: Analysis population included all participants whose data were included and observed in the study. Here Number Analyzed refers to the number of participants evaluable for the specified rows.

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
PalbociclibNumber of Participants Categorized According to Number of Cycles of Index Treatment Per Type of Combination TreatmentPalbociclib + AI<= 6 cycles44 Participants
PalbociclibNumber of Participants Categorized According to Number of Cycles of Index Treatment Per Type of Combination TreatmentPalbociclib + AI>6 - 11 cycles37 Participants
PalbociclibNumber of Participants Categorized According to Number of Cycles of Index Treatment Per Type of Combination TreatmentPalbociclib + AI>11 - 20 cycles66 Participants
PalbociclibNumber of Participants Categorized According to Number of Cycles of Index Treatment Per Type of Combination TreatmentPalbociclib + AI>20 cycles146 Participants
PalbociclibNumber of Participants Categorized According to Number of Cycles of Index Treatment Per Type of Combination TreatmentPalbociclib + Fulvestrant<= 6 cycles99 Participants
PalbociclibNumber of Participants Categorized According to Number of Cycles of Index Treatment Per Type of Combination TreatmentPalbociclib + Fulvestrant>6 - 11 cycles47 Participants
PalbociclibNumber of Participants Categorized According to Number of Cycles of Index Treatment Per Type of Combination TreatmentPalbociclib + Fulvestrant>11 - 20 cycles52 Participants
PalbociclibNumber of Participants Categorized According to Number of Cycles of Index Treatment Per Type of Combination TreatmentPalbociclib + Fulvestrant>20 cycles68 Participants
Primary

Number of Participants Categorized According to Type of Index Combination Treatment Regimen

Number of participants were classified on the basis of type of combination treatment along with palbociclib as first line therapy. Index treatment was palbociclib combination treatment. Index period was defined as duration in which participant initiated palbociclib combination treatment.

Time frame: Day 1 of index treatment (any day from 01 January 2018 to 30 June 2020 [index period]), data observed and evaluated during 18 months of this retrospective study

Population: Analysis population included all participants whose data were included and observed in the study.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
PalbociclibNumber of Participants Categorized According to Type of Index Combination Treatment RegimenPalbociclib + Aromatase Inhibitor (AI)293 Participants
PalbociclibNumber of Participants Categorized According to Type of Index Combination Treatment RegimenPalbociclib + Fulvestrant266 Participants
Primary

Number of Participants Who Advanced and Did Not Advance to a Subsequent Treatment up to Month 12 Per Type of Combination Treatment

Subsequent treatment after palbociclib therapy was the regimen received by participants following discontinuation from the palbociclib treatment. Number of participants who advanced and did not advance to a subsequent treatment up to Month 12 were reported. Index treatment is palbociclib combination treatment.

Time frame: Day 1 of index treatment up to Month 12 of index treatment (during 01 January 2018 to 30 June 2022 [approximately 54 months]); data observed and evaluated during 18 months of this retrospective study

Population: Analysis population included all participants whose data were included and observed in the study. Here Overall Number of Participants Analyzed signifies participants evaluable for the outcome measure. All participants reported under Overall Number of Participants Analyzed contributed data to the table; however, may not have evaluable data for every row. Number Analyzed refers to the number of participants evaluable for the specified rows.

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
PalbociclibNumber of Participants Who Advanced and Did Not Advance to a Subsequent Treatment up to Month 12 Per Type of Combination TreatmentPalbociclib + AIAdvanced219 Participants
PalbociclibNumber of Participants Who Advanced and Did Not Advance to a Subsequent Treatment up to Month 12 Per Type of Combination TreatmentPalbociclib + AIDid not advance5 Participants
PalbociclibNumber of Participants Who Advanced and Did Not Advance to a Subsequent Treatment up to Month 12 Per Type of Combination TreatmentPalbociclib + FulvestrantAdvanced239 Participants
PalbociclibNumber of Participants Who Advanced and Did Not Advance to a Subsequent Treatment up to Month 12 Per Type of Combination TreatmentPalbociclib + FulvestrantDid not advance3 Participants
Primary

Number of Participants Who Advanced and Did Not Advance to a Subsequent Treatment up to Month 24 Per Type of Combination Treatment

Subsequent treatment after palbociclib therapy was the regimen received by participants following discontinuation from the palbociclib treatment. Number of participants who advanced and did not advance to a subsequent treatment up to Month 24 were reported. Index treatment is palbociclib combination treatment.

Time frame: Day 1 of index treatment up to Month 24 of index treatment (during 01 January 2018 to 30 June 2022 [approximately 54 months]); data observed and evaluated during 18 months of this retrospective study

Population: Analysis population included all participants whose data were included and observed in the study. Here Overall Number of Participants Analyzed signifies participants evaluable for the outcome measure. All participants reported under Overall Number of Participants Analyzed contributed data to the table; however, may not have evaluable data for every row. Number Analyzed refers to the number of participants evaluable for the specified rows.

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
PalbociclibNumber of Participants Who Advanced and Did Not Advance to a Subsequent Treatment up to Month 24 Per Type of Combination TreatmentPalbociclib + AIAdvanced223 Participants
PalbociclibNumber of Participants Who Advanced and Did Not Advance to a Subsequent Treatment up to Month 24 Per Type of Combination TreatmentPalbociclib + AIDid not advance1 Participants
PalbociclibNumber of Participants Who Advanced and Did Not Advance to a Subsequent Treatment up to Month 24 Per Type of Combination TreatmentPalbociclib + FulvestrantAdvanced242 Participants
PalbociclibNumber of Participants Who Advanced and Did Not Advance to a Subsequent Treatment up to Month 24 Per Type of Combination TreatmentPalbociclib + FulvestrantDid not advance0 Participants
Primary

Number of Participants Who Advanced and Did Not Advance to a Subsequent Treatment up to Month 6 Per Type of Combination Treatment

Subsequent treatment after palbociclib therapy was the regimen received by participants following discontinuation from the palbociclib treatment. Number of participants who advanced and did not advance to a subsequent treatment up to Month 6 were reported. Index treatment is palbociclib combination treatment.

Time frame: Day 1 of index treatment up to Month 6 of index treatment (during 01 January 2018 to 30 June 2022 [approximately 54 months]); data observed and evaluated during 18 months of this retrospective study

Population: Analysis population included all participants whose data were included and observed in the study. Here Overall Number of Participants Analyzed signifies participants evaluable for the outcome measure. All participants reported under Overall Number of Participants Analyzed contributed data to the table; however, may not have evaluable data for every row. Number Analyzed refers to the number of participants evaluable for the specified rows.

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
PalbociclibNumber of Participants Who Advanced and Did Not Advance to a Subsequent Treatment up to Month 6 Per Type of Combination TreatmentPalbociclib + AIAdvanced207 Participants
PalbociclibNumber of Participants Who Advanced and Did Not Advance to a Subsequent Treatment up to Month 6 Per Type of Combination TreatmentPalbociclib + AIDid not advance17 Participants
PalbociclibNumber of Participants Who Advanced and Did Not Advance to a Subsequent Treatment up to Month 6 Per Type of Combination TreatmentPalbociclib + FulvestrantAdvanced230 Participants
PalbociclibNumber of Participants Who Advanced and Did Not Advance to a Subsequent Treatment up to Month 6 Per Type of Combination TreatmentPalbociclib + FulvestrantDid not advance12 Participants
Primary

Number of Participants Who Died Following Initiation of Index Treatment up to Month 12 Per Type of Combination Treatment

Number of participants who died following index treatment up to Month 12 were reported. Index treatment was palbociclib combination treatment.

Time frame: Day 1 of index treatment up to Month 12 of index treatment (during 01 January 2018 to 30 June 2022 [approximately 54 months]); data observed and evaluated during 18 months of this retrospective study

Population: Analysis population included all participants whose data were included and observed in the study. Here Number Analyzed refers to the number of participants evaluable for the specified rows.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
PalbociclibNumber of Participants Who Died Following Initiation of Index Treatment up to Month 12 Per Type of Combination TreatmentPalbociclib + AI21 Participants
PalbociclibNumber of Participants Who Died Following Initiation of Index Treatment up to Month 12 Per Type of Combination TreatmentPalbociclib + Fulvestrant71 Participants
Primary

Number of Participants Who Died Following Initiation of Index Treatment up to Month 24 Per Type of Combination Treatment

Number of participants who died following index treatment up to Month 24 were reported. Index treatment is palbociclib combination treatment.

Time frame: Day 1 of index treatment up to Month 24 of index treatment (during 01 January 2018 to 30 June 2022 [approximately 54 months]); data observed and evaluated during 18 months of this retrospective study

Population: Analysis population included all participants whose data were included and observed in the study. Here Number Analyzed refers to the number of participants evaluable for the specified rows.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
PalbociclibNumber of Participants Who Died Following Initiation of Index Treatment up to Month 24 Per Type of Combination TreatmentPalbociclib + AI58 Participants
PalbociclibNumber of Participants Who Died Following Initiation of Index Treatment up to Month 24 Per Type of Combination TreatmentPalbociclib + Fulvestrant119 Participants
Primary

Number of Participants Who Died Following Initiation of Index Treatment up to Month 6 Per Type of Combination Treatment

Number of participants who died following index treatment up to Month 6 were reported. Index treatment was palbociclib combination treatment.

Time frame: Day 1 of index treatment up to Month 6 of index treatment (during 01 January 2018 to 30 June 2022 [approximately 54 months]); data observed and evaluated during 18 months of this retrospective study

Population: Analysis population included all participants whose data were included and observed in the study. Here Number Analyzed refers to the number of participants evaluable for the specified rows.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
PalbociclibNumber of Participants Who Died Following Initiation of Index Treatment up to Month 6 Per Type of Combination TreatmentPalbociclib + AI10 Participants
PalbociclibNumber of Participants Who Died Following Initiation of Index Treatment up to Month 6 Per Type of Combination TreatmentPalbociclib + Fulvestrant31 Participants
Primary

Number of Participants With Modification (Reduction) in Initial Palbociclib Dose Per Type of Combination Treatment

Number of participants who had a reduction in initial palbociclib dose were reported. Index treatment was palbociclib combination treatment.

Time frame: Day 1 of index treatment till discontinuation of index treatment (during 01 January 2018 to 30 June 2022 [approximately 54 months]); data observed and evaluated during 18 months of this retrospective study

Population: Analysis population included all participants whose data were included and observed in the study. Here Number Analyzed refers to the number of participants evaluable for the specified rows.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
PalbociclibNumber of Participants With Modification (Reduction) in Initial Palbociclib Dose Per Type of Combination TreatmentPalbociclib + AI96 Participants
PalbociclibNumber of Participants With Modification (Reduction) in Initial Palbociclib Dose Per Type of Combination TreatmentPalbociclib+ Fulvestrant82 Participants
Primary

Percentage of Participants With Ongoing Index Treatment at Month 12 Per Type of Combination Treatment

Percentage of participants with ongoing index treatment at Month 12 were reported. Index treatment was palbociclib combination treatment.

Time frame: Day 1 of index treatment up to Month 12 of index treatment (during 01 January 2018 to 30 June 2022 [approximately 54 months]); data observed and evaluated during 18 months of this retrospective study

Population: Analysis population included all participants whose data were included and observed in the study. Here Number Analyzed refers to the number of participants evaluable for the specified rows.

ArmMeasureGroupValue (NUMBER)
PalbociclibPercentage of Participants With Ongoing Index Treatment at Month 12 Per Type of Combination TreatmentPalbociclib + AI76.3 Percentage of Participants
PalbociclibPercentage of Participants With Ongoing Index Treatment at Month 12 Per Type of Combination TreatmentPalbociclib + Fulvestrant51.2 Percentage of Participants
Primary

Percentage of Participants With Ongoing Index Treatment at Month 24 Per Type of Combination Treatment

Percentage of participants with ongoing index treatment at Month 24 were reported. Index treatment was palbociclib combination treatment.

Time frame: Day 1 of index treatment up to Month 24 of index treatment (during 01 January 2018 to 30 June 2022 [approximately 54 months]); data observed and evaluated during 18 months of this retrospective study

Population: Analysis population included all participants whose data were included and observed in the study. Here Number Analyzed refers to the number of participants evaluable for the specified rows.

ArmMeasureGroupValue (NUMBER)
PalbociclibPercentage of Participants With Ongoing Index Treatment at Month 24 Per Type of Combination TreatmentPalbociclib + AI54.7 Percentage of participants
PalbociclibPercentage of Participants With Ongoing Index Treatment at Month 24 Per Type of Combination TreatmentPalbociclib + Fulvestrant26.0 Percentage of participants
Primary

Percentage of Participants With Ongoing Index Treatment at Month 6 Per Type of Combination Treatment

Percentage of participants with ongoing index treatment at Month 6 were reported. Index treatment was palbociclib combination treatment.

Time frame: Day 1 of index treatment up to Month 6 of index treatment (during 01 January 2018 to 30 June 2022 [approximately 54 months]); data observed and evaluated during 18 months of this retrospective study

Population: Analysis population included all participants whose data were included and observed in the study. Here Number Analyzed refers to the number of participants evaluable for the specified rows.

ArmMeasureGroupValue (NUMBER)
PalbociclibPercentage of Participants With Ongoing Index Treatment at Month 6 Per Type of Combination TreatmentPalbociclib + AI91.0 Percentage of Participants
PalbociclibPercentage of Participants With Ongoing Index Treatment at Month 6 Per Type of Combination TreatmentPalbociclib + Fulvestrant71.1 Percentage of Participants
Primary

Time on Treatment for Subsequent Treatment After Palbociclib Therapy Per Type of Combination Treatment

Subsequent treatment after palbociclib therapy was the regimen received by participants following discontinuation from the palbociclib treatment and included chemotherapy, everolimus, fulvestrant and other. The duration between the start and stop of the post-palbociclib treatment was reported in this outcome measure. Index treatment was palbociclib combination treatment. Kaplan-Meier method was used for the assessment of this outcome measure.

Time frame: Day 1 of subsequent treatment till last dose of subsequent treatment (during 01 January 2018 to 30 June 2022 [approximately 54 months]); data observed and evaluated during 18 months of this retrospective study

Population: Analysis population included all participants whose data were included and observed in the study. Here Overall Number of Participants Analyzed signifies the number of participants evaluable for this outcome measure. All participants reported under Overall Number of Participants Analyzed contributed data to the table; however, may not have evaluable data for every row. Number Analyzed refers to the number of participants evaluable for the specified rows.

ArmMeasureGroupValue (MEDIAN)
PalbociclibTime on Treatment for Subsequent Treatment After Palbociclib Therapy Per Type of Combination TreatmentPalbociclib + AI: Chemotherapy5.19 Months
PalbociclibTime on Treatment for Subsequent Treatment After Palbociclib Therapy Per Type of Combination TreatmentPalbociclib + AI: Everolimus4.57 Months
PalbociclibTime on Treatment for Subsequent Treatment After Palbociclib Therapy Per Type of Combination TreatmentPalbociclib + AI: Fulvestrant4.41 Months
PalbociclibTime on Treatment for Subsequent Treatment After Palbociclib Therapy Per Type of Combination TreatmentPalbociclib + AI: Other12.89 Months
PalbociclibTime on Treatment for Subsequent Treatment After Palbociclib Therapy Per Type of Combination TreatmentPalbociclib + Fulvestrant: Chemotherapy6.08 Months
PalbociclibTime on Treatment for Subsequent Treatment After Palbociclib Therapy Per Type of Combination TreatmentPalbociclib + Fulvestrant: Everolimus4.44 Months
PalbociclibTime on Treatment for Subsequent Treatment After Palbociclib Therapy Per Type of Combination TreatmentPalbociclib + Fulvestrant: Fulvestrant7.76 Months
PalbociclibTime on Treatment for Subsequent Treatment After Palbociclib Therapy Per Type of Combination TreatmentPalbociclib + Fulvestrant: other4.37 Months
Primary

Time to Initiation of Chemotherapy After Cessation of Initial Palbociclib Therapy Per Type of Combination Treatment

Time to initiation of chemotherapy was the duration from end of index treatment up to start of chemotherapy. Index treatment is palbociclib combination treatment.

Time frame: From cessation of index treatment up to initiation of chemotherapy (during 01 January 2018 to 31 December 2020 [approximately 36 months]); data observed and evaluated during 18 months of this retrospective study

Population: Analysis population included all participants whose data were included and observed in the study. Here Overall Number of Participants Analyzed signifies the number of participants evaluable for this outcome measure. All participants reported under Overall Number of Participants Analyzed contributed data to the table; however, may not have evaluable data for every row. Number Analyzed refers to the number of participants evaluable for the specified rows.

ArmMeasureGroupValue (MEDIAN)
PalbociclibTime to Initiation of Chemotherapy After Cessation of Initial Palbociclib Therapy Per Type of Combination TreatmentPalbociclib + AI0.79 Months
PalbociclibTime to Initiation of Chemotherapy After Cessation of Initial Palbociclib Therapy Per Type of Combination TreatmentPalbociclib + Fulvestrant0.92 Months
Primary

Time to Initiation of Next Treatment (TTNT) From Initiation of Palbociclib Treatment Per Type of Combination Treatment

TTNT was defined as the interval between the start of the index treatment date and the date of the next-line treatment. Participants who did not advance to the next treatment were censored on the study end date or death, whichever occurred first. Index treatment is palbociclib combination treatment. Kaplan-Meier method was used for the assessment of this outcome measure.

Time frame: Day 1 of index treatment up to initiation of next treatment (during 01 January 2018 to 30 June 2022 [approximately 54 months]); data observed and evaluated during 18 months of this retrospective study

Population: Analysis population included all participants whose data were included and observed in the study. Here Number Analyzed refers to the number of participants evaluable for the specified rows.

ArmMeasureGroupValue (MEDIAN)
PalbociclibTime to Initiation of Next Treatment (TTNT) From Initiation of Palbociclib Treatment Per Type of Combination TreatmentPalbociclib + AI34.5 Months
PalbociclibTime to Initiation of Next Treatment (TTNT) From Initiation of Palbociclib Treatment Per Type of Combination TreatmentPalbociclib + Fulvestrant16.4 Months

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026